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CVE-2025-68786 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: skip lock-range check on equal size to avoid size==0 underflow When size equals the current i_size (including 0), the code used to call check_lock_range(filp, i_size, size - 1, WRITE), which computes `size - 1` and can underflow for size==0. Skip the equal case.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/52fcbb92e0d3acfd1448b2a43b6595d540da5295 kernel.org
https://git.kernel.org/stable/c/571204e4758a528fbd67330bd4b0dfbdafb33dd8 kernel.org
https://git.kernel.org/stable/c/5d510ac31626ed157d2182149559430350cf2104 kernel.org
https://git.kernel.org/stable/c/a6f4cfa3783804336491e0edcb250c25f9b59d33 kernel.org
https://git.kernel.org/stable/c/da29cd197246c85c0473259f1cad897d9d28faea kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-68786
NVD Published Date:
01/13/2026
NVD Last Modified:
01/14/2026
Source:
kernel.org